如下：
1：I usually learn English by reading passages.
2：I learn English by working with a group.
3：She learns math by doing a lot of exercises.
4：I study Chinese by taking notes .
5：I study Chinese by listening to tapes .
6：I study Chinese by asking teather for help.
7：We should learn English by using it.
By spaceship by doing sth. 通過做某事。
She tried to buy time by doing a lot of talk. 她企圖以滔滔不絕的談話來拖延時間。
Go beyond one's ty in doing sth. 超越職權范圍做某事。
Have an opportunity for doing sth. 有[沒有，很少有，有不多的]做某事的機會
By doing extra homework, he soon got ahead of his class-mates. 他靠多做家庭作業，很快在班上名列前茅。
May I ask a favour of you (ie ask you to do sth for me)? 請您幫個忙行嗎?
I think by doing so he was trying to strike terror into your heart. 我認為他這樣做是為了嚇唬你。
I go to school by taking bus.
He finished his homework by asking his sister for help.
I escaped from washing clothes by taking them back home.
He earned enough money for the travelling by working after school.
1.By doing we learn.
經一事，長一智。
2.By doing nothing we learn to do ill.
閑逸是萬惡之源。
3.I wonder what he is at by doing so.
我不知道他這樣做是什么意思。
4.By doing so you will wash away your sins.
這樣做你會洗去你的罪過。